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 ###Instrução: Qual é a pontuação máxima de T20 na pista verde?
 ###Tabelas: CREATE TABLE ground_history (ground_history_id AUTO_INCREMENT PRIMARY KEY, Name of ground VARCHAR, Location VARCHAR, Year VARCHAR, FC matches INT, LA matches INT, T20 matches INT, Total INT) CREATE TABLE tournament_champions (tournament_champions_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Champion (seed) VARCHAR, Score VARCHAR, Runner-up (seed) VARCHAR, Most valuable player VARCHAR) CREATE TABLE race_calendar_and_results (race_calendar_and_results_id AUTO_INCREMENT PRIMARY KEY, Round VARCHAR, Circuit VARCHAR, Date VARCHAR, Pole Position VARCHAR, Fastest Lap VARCHAR, Winning Driver VARCHAR, Winning Team VARCHAR) CREATE TABLE elimination_chamber_entrances_and_eliminations_smackdown_ecw (elimination_chamber_entrances_and_eliminations_smackdown_ecw_id AUTO_INCREMENT PRIMARY KEY, Eliminated VARCHAR, Wrestler VARCHAR, Entered INT, Eliminated by VARCHAR, Time VARCHAR) CREATE TABLE percentage_share (percentage_share_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, 2010 INT, 2009 INT, 2008 INT, 2005 INT, 2000 INT, 1995 INT, 1990 INT, 1985 INT)  
SELECT MAX T20 matches FROM ground_history WHERE Name of ground = Green Lane